[Bug binutils/29075] objdump -S does not support debuginfod

[mark at klomp dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29075

--- Comment #7 from Mark Wielaard <mark at klomp dot org> ---
So more specifically whenever objdump -S cannot find the sources it can try to
call debuginfod_find_source () just like it tries to find the original
debuginfo through debuginfod_find_debuginfo. See the documentation in
debuginfod.h:

/* Query the urls contained in $DEBUGINFOD_URLS for a file with
   the specified type and build id.  If build_id_len == 0, the
   build_id is supplied as a lowercase hexadecimal string; otherwise
   it is a binary blob of given length.

   If successful, return a file descriptor to the target, otherwise
   return a posix error code.  If successful, set *path to a
   strdup'd copy of the name of the same file in the cache.
   Caller must free() it later. */

int debuginfod_find_debuginfo (debuginfod_client *client,
                               const unsigned char *build_id,
                               int build_id_len,
                               char **path);

int debuginfod_find_executable (debuginfod_client *client,
                                const unsigned char *build_id,
                                int build_id_len,
                                char **path);

int debuginfod_find_source (debuginfod_client *client,
                            const unsigned char *build_id,
                            int build_id_len,
                            const char *filename,
                            char **path);

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